Device for fixing an electronic display housing

Abstract

A device for fixing a housing of an electronics module includes an intermediate part (6) on which the housing (1) is fixed, and also includes a rail (5a) for receiving the housing (1) and the intermediate part (6), said intermediate part (6) including a locking element (21) that carries a catch (30) suitable for co-operating with complementary relief on the intermediate part (6) to hold the locking element in a retracted position, from which it is released when the intermediate part (6) and the housing (1) are put into place on the rail (5a).

I claim: 
     
       1. A device for fixing at least one electronic module housing (1) for displaying information relating to goods exposed in a shop, and in particular in a retail shop, the device comprising a rail (5a) designed to receive the housing (1) and an intermediate part (6) which carries at least one resilient locking member (21) having at least one projection designed to co-operate with a groove presented by the rail (5) for the purposing of holding said housing (1) relative to said rail (5a), the housing (1) and said intermediate part (6) presenting complementary means (35) for fixing said housing (1) on said intermediate part (6), the device being characterized in that the locking element (21) has a catch (30) designed to co-operate with a complementary projection on the intermediate part (6) to hold said locking element (21) in a retracted position against resilient urging thereof, the complementary projection (25) then being disengaged relative to the groove (13) of the rail with which it co-operates, the intermediate part (6) having a resilient branch (32) which, while the housing (1) and the intermediate part (6) are being installed on the rail (5a), is urged back by the web (7) of said rail coming into contact with the catch (30), so as to disengage the catch from the complementary projection with which it cooperates, the locking element (21) then resiliently urging the projection into the groove of the rail (5a). 
     
     
       2. A device according to claim 1, characterized in that the rail (5a) has a web (7) and two longitudinally-extending flanges (8, 9) on either side of the web (7), together with two inside grooves (13) carried by respective ones of the flanges (8, 9) and extending along the web (7) in the immediate vicinity thereof. 
     
     
       3. A device according to claims 1 or 2, characterized in that the intermediate part (6) carries a resilient branch (32) terminated by a head portion (34), the back of the housing (1) having a recess designed to receive said head portion (34), said branch (32) being urged during installation of the housing (1) and the intermediate part (6) on the rail (5a) by coming into contact with the web (7) of said rail, thereby causing said head portion (34) to engage in said recess so as to lock the housing (1) relative to said intermediate part (6). 
     
     
       4. A device according to any preceding claim, characterized in that at least one projection (25) has serrations (27) designed to co-operate with complementary means carried by the groove (13) which co-operates with at least one said projection (25), for the purpose of securing the housing (1) longitudinally relative to the rail (5a). 
     
     
       5. A device according to claim 4, characterized in that the serrations (27) are distributed along the entire length of at least one of the grooves (13) in the rail. 
     
     
       6. A device according to claim 4, characterized in that the bottom of at least one of the grooves in the rail is made of a material in which the serrations of the at least one serrated projection are designed to penetrate for engagement purposes. 
     
     
       7. A device according to claim 2 characterized in that the bottom flange (8) of the rail (5a) has a flat slot (12) open to the face of said flange (8) facing away from the top flange (9) and designed to receive and carry publicity supports. 
     
     
       8. A device according to claim 2 for fixing the housing (1) on shelving (2), characterized in that the rail (5a) is a portion of section bar (5) also having a sill (10) that extends substantially at right angles to the web (7) of the rail (5a) being designed to bear against a top face and an edge of a shelf (4), respectively. 
     
     
       9. A device according to claim 8, characterized in that the rail (5a) and the sill (10) are fixed to the shelf (2) by riveting, and have longitudinal grooves (11) for receiving the heads of the rivets.